• Adiponectin Is Related to Cardiovascular Risk in Severe Mental Illness Independent of Antipsychotic Treatment 

      Reponen, Elina Johanna; Tesli, Martin Steen; Dieset, Ingrid; Steen, Nils Eiel; Vedal, Trude Seselie Jahr; Szabo, Attila; Werner, Maren Caroline Frogner; Lunding, Synve Hoffart; Johansen, Ingrid Torp; Rødevand, Linn; Andreassen, Ole Andreas; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-28)
      Background: Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental illnesses (SMI) associated with elevated cardiovascular disease (CVD) risk, including obesity. Leptin and adiponectin are secreted by adipose tissue, with pro- and anti-inflammatory properties, respectively. The second generation antipsychotics (AP) olanzapine, clozapine, and quetiapine have been associated with high leptin ...
    • Atherogenic Lipid Ratios Related to Myeloperoxidase and C-Reactive Protein Levels in Psychotic Disorders 

      Reponen, Elina Johanna; Dieset, Ingrid; Tesli, Martin Steen; Mørch, Ragni Helene; Aas, Monica; Vedal, Trude Seselie Jahr; Haug, Elisabeth; Drange, Ole Kristian; Steen, Nils Eiel; Hope, Sigrun; Szabo, Attila; Gohar, Sherif Mostafa Mohamed Ahmed; Wedervang-Resell, Kirsten; Djurovic, Srdjan; Melle, Ingrid; Aukrust, Pål; Andreassen, Ole Andreas; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-10)
      <p><i>Background:</i> Cardiovascular disease (CVD) is a major cause of premature death in patients with psychotic disorders, where dyslipidemia occurs frequently. In the pathogenesis of these serious mental disorders, a low-grade inflammation seems to be a possible contributor. Concurrently, systemic inflammation and its interplay with dyslipidemia is a central driver in the pathogenesis of CVD. We ...
    • Attenuated Notch signaling in schizophrenia and bipolar disorder 

      Hoseth, Eva Zsuzsanna; Krull, Florian; Dieset, Ingrid; Mørch, Ragni Helene; Hope, Sigrun; Gardsjord, Erlend Strand; Steen, Nils Eiel; Melle, Ingrid; Brattbakk, Hans-Richard; Steen, Vidar Martin; Aukrust, Pål; Djurovic, Srdjan; Andreassen, Ole Andreas; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-23)
      The Notch signaling pathway plays a crucial role in neurodevelopment and in adult brain homeostasis. We aimed to further investigate Notch pathway activity in bipolar disorder (BD) and schizophrenia (SCZ) by conducting a pathway analysis. We measured plasma levels of Notch ligands (DLL1 and DLK1) using enzyme immunoassays in a large sample of patients (SCZ n = 551, BD n = 246) and healthy controls ...
    • Exploring the Wnt signaling pathway in schizophrenia and bipolar disorder 

      Hoseth, Eva Zsuzsanna; Krull, Florian; Dieset, Ingrid; Mørch, Ragni Helene; Hope, Sigrun; Gardsjord, Erlend Strand; Steen, Nils Eiel; Melle, Ingrid; Brattbakk, Hans-Richard; Steen, Vidar Martin; Aukrust, Pål; Djurovic, Srdjan; Andreassen, Ole Andreas; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-06)
      The Wnt signaling pathway plays a crucial role in neurodevelopment and in regulating the function and structure of the adult nervous system. Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental disorders with evidence of subtle neurodevelopmental, structural and functional neuronal abnormalities. We aimed to elucidate the role of aberrant regulation of the Wnt system in these disorders ...
    • Interleukin-18 signaling system links to agitation in severe mental disorders 

      Hjell, Gabriela; Szabo, Attila; Mørch-Johnsen, Lynn Egeland; Holst, Rene; Tesli, Natalia; Bell, Christina; Fischer-Vieler, Thomas; Werner, Maren Caroline Frogner; Lunding, Synve Hoffart; Ormerod, Monica Bettina E. Greenwood; Johansen, Ingrid Torp; Dieset, Ingrid; Djurovic, Srdjan; Melle, Ingrid; Ueland, Thor; Andreassen, Ole; Steen, Nils Eiel; Haukvik, Unn Kristin Hansen (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-12)
      Objective: Agitation is a challenging clinical feature in severe mental disorders, but its biological correlates are largely unknown. Inflammasome-related abnormalities have been linked to severe mental disorders and implicated in animal models of agitation. We investigated if levels of circulating inflammasome-related immune markers were associated with agitation in severe mental disorders.<p> ...
    • Polygenic risk for schizophrenia and bipolar disorder in relation to cardiovascular biomarkers 

      Reponen, Elina Johanna; Ueland, Thor; Rokicki, Jaroslav; Bettella, Francesco; Aas, Monica; Werner, Maren C. F.; Dieset, Ingrid; Steen, Nils E.; Andreassen, Ole A.; Tesli, Martin Steen (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-05)
      Individuals with schizophrenia and bipolar disorder are at an increased risk of cardiovascular disease (CVD), and a range of biomarkers related to CVD risk have been found to be abnormal in these patients. Common genetic factors are a putative underlying mechanism, alongside lifestyle factors and antipsychotic medication. However, the extent to which the altered CVD biomarkers are related to genetic ...
    • Reduced brain-derived neurotrophic factor is associated with childhood trauma experiences and number of depressive episodes in severe mental disorders 

      Aas, Monica; Dieset, Ingrid; Mørch, Ragni Helene; Steen, Nils Eiel; Hope, Sigrun; Reponen, Elina Johanna; Anderssen, Jannicke Fjæra; Ueland, Thor; Aukrust, Pål; Melle, Ingrid; Agartz, Ingrid; Andreassen, Ole Andreas (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-17)
      <p><i>Background - </i>Although several studies have found reduced plasma BDNF levels in patients with severe mental disorders, the sample sizes have been small and have exhibited variation and heterogeneity. Furthermore, long-term neurobiological changes following childhood trauma and clinical severity have been linked to a reduction in BDNF levels. Accordingly, we aim to clarify, using the largest ...